Rising of the Pet System

A young man who was a slave for as long as he remembers finally gets set free into the world by a powerful devil as her servant.
As named by her, he took Hades as a name and a way of life. As her hellhound unleashed on the world, she gave him a contract. The more he sacrifices for her, the more power she will grant him.
What to expect?
The world of Alseria is a ruthless world so don’t expect people to be just after power or be evil for the sake of evil. Each villain I wrote has a legitimate reason for his action, and by legitimate I mean something good.
The MC:
He isn’t a good guy neither he is evil. He just wants to get by, and occasionally ends up causing a disaster.
His sense of morality isn’t like other people’s due to his upbringing and this story is about him trying to be normal.
The MC Powers:
He has abilities granted to him by the system, not magic. Even though magic exists and is prominent in the world, our MC doesn’t have the patience to sit and learn it.
By the end game, he will have a total of ten powerful abilities (Which are addressed in the ten-chapter prologue)
I decided to take the HP, MP, and SP from the system concept since they aren’t good indicators of physical capabilities. Instead, I exchanged them for visual indicators, like if the MC is stabbed in the chest, his health is probably too low to stand.
I will keep a review so you can contact me easily.